【摘要】 在信息化程度如此之高的今天,世界的发展越来越离不开各种信息化产品的支撑,而地理空间数据作为国家基础性设施建设和地理科学研究的重要成果,其战略性地位不容小视,但随着信息化的发展,对于信息的各种不良操作手段也随之而来,所以地理空间数据的安全问题也就急需一种高效可行的解决办法,数字水印技术正是目前解决这一问题的主要技术手段。更多还原

【Abstract】 In such a high degree of information technology today,the development of the world increasingly inseparable from the support of a variety of information products,and geographical data as a national infrastructure of construction and geographical science important results,its strategic position can not be overlooked,but with the development of information technology,for a variety of adverse operating means information has cropped up,so the security issue geographical data will need for a workable and efficient solutions,digital watermarking technology is currently the main technical means to solve this problem.更多还原